This sounds very similar to another post last month. http://opensolaris.org/jive/thread.jspa?messageID=487453
The trouble appears to be below ZFS, so you might try asking on the storage-discuss forum. -- richard On Jul 28, 2010, at 5:23 PM, Karol wrote: > I appear to be getting between 2-9MB/s reads from individual disks in my > zpool as shown in iostat -v > I expect upwards of 100MBps per disk, or at least aggregate performance on > par with the number of disks that I have. > > My configuration is as follows: > Two Quad-core 5520 processors > 48GB ECC/REG ram > 2x LSI 9200-8e SAS HBAs (2008 chipset) > Supermicro 846e2 enclosure with LSI sasx36 expander backplane > 20 seagate constellation 2TB SAS harddrives > 2x 8GB Qlogic dual-port FC adapters in target mode > 4x Intel X25-E 32GB SSDs available (attached via LSI sata-sas interposer) > mpt_sas driver > multipath enabled, all four LSI ports connected for 4 paths available: > f_sym, load-balance logical-block region size 11 on seagate drives > f_asym_sun, load-balance none, on intel ssd drives > > currently not using the SSDs in the pools since it seems I have a deeper > issue here. > Pool configuration is four 2-drive mirror vdevs in one pool, and the same in > another pool. 2 drives are for OS and 2 drives aren't being used at the > moment. > > Where should I go from here to figure out what's wrong? > Thank you in advance - I've spent days reading and testing but I'm not > getting anywhere. > > P.S: I need the aid of some Genius here. > -- > This message posted from opensolaris.org > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss -- Richard Elling rich...@nexenta.com +1-760-896-4422 Enterprise class storage for everyone www.nexenta.com _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
